Home Postcode finder QLD Maryborough Maryborough postcode QLD Maryborough is a locality in Queensland covered by postcode 4650. Postcode 4650 State or territory Queensland (QLD) Region Sunshine Coast Add a free Maryborough business listing More business listings in Maryborough Businesses in MaryboroughAlbert State School210-220 Albert St · 07 41200888Aldridge State High School21 Boys Ave · 07 41208444Amped Electrical Services SEQ259 Iindah Rd East · 0448 197 285 Common questionsWhat is the postcode for Maryborough?Maryborough, QLD has the postcode 4650.What state is Maryborough in?Maryborough is in Queensland (QLD).Does postcode 4650 cover more than one suburb?Yes. Postcode 4650 covers 48 localities, so the postcode alone does not identify Maryborough. Browse other postcodes in Queensland, or widen the search to every Australian postcode.